British aid group Oxfam has warned that the lives of up to 1.5 million cyclone victims in Myanmar are in danger from diseases if clean water and sanitation are not provided soon. Oxfam's regional chief Sarah Ireland says "there are all the factors" for a public health catastrophe. She says the death toll from the May 3 cyclone is likely to be 100,000 - and that number could eventually multiply by 15 times. She told reporters Sunday: "We are afraid there is a real risk of a massive public catastrophe waiting to happen in Myanmar. It is a perfect storm, if you will."